5-20 or 5-30

Discussion in 'Gen 2 Prius Main Forum' started by Vanne, Nov 16, 2013.

  1. Vanne

    Vanne Junior Member

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    Hi all fiends

    My Prius 2004 I was recommend by car maintenance using engine oil 5-20 normally and my car was second hand from USA
    Should I change 5-20 or 5-30 that good for my car

    Thanks you
    Nicole
     
  2. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    5-w20 is what Toyota recommends, do you have any evidence they are wrong?

    Edit: I am wrong. 5-w30 is what Toyota recommends. Sorry.
     
  3. Vanne

    Vanne Junior Member

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    Palmer , but I saw the engine oil cover it's mention 5-w30 but I notice that it's always miss after I change 2 month so I have to buy at least 1l of oil to fill more any problem with that ? Please advise
     
  4. wjtracy

    wjtracy Senior Member

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    Gen2 was 5W-30 recommended, later Toyota said 5W-20 was OK too.
    I stick with 5W-30...sometimes in winter I go with 0W-30 (Mobil-1 advanced fuel eonomy).
    If you want to use 5w-20, winter is a good time to try it becuase the cold weather.
     
  5. xpcman

    xpcman Senior Member

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    Winter is like 25 C in Phnom Penh
     
  6. Patrick Wong

    Patrick Wong DIY Enthusiast

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    I believe you are saying that your engine consumes some oil. In that case, it will not help to move to a thinner oil such as 5W-20. Stick with 5W-30.

    Actually, since you live in a tropical area you probably could get away with using straight 30 weight oil instead of a multigrade oil like 5W-30.
     
  7. wjtracy

    wjtracy Senior Member

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    ...nice! sounds like closer to 33C in day time. Why are we talking Celcius?
    OK stick with 5W-30...sounds like Florida here.